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i J. RUSSELL.

MIDDLINGS PURIFIER.

No. 284,488.v Patented sept. 4. 188s.

N. PETERS. Phuurulhngmphm. wnshinmr UNITED STAT-Es PATENT OFFICE.

.IoIIN RUSSELL,` OE BERLIN, ,'rENNSYLvANIA.

MIDDLlNes-PURIHR. t

`SPECIFICATION forming part of Letters Patent No. 284,488, dated September 4, 1883.

.Application filed February 23, 1883. (No model.)

Z'oaZZ whom it may concern.- a

Beit known that I, .Tom RUSSELL, a citizen of the United States, residing at Berlin, in

the county of Somerset and State of Pennsylvania, have invented certain 'new and useful Improvements in Middlings-Puriiiers; and I do declare the following to be full, clear,

` and exactdescription of the invention, such as will enable others skilled in the art to which it appertains to make and use the saine, reference being had to the accompanying` draw- I ings, and to the letters and gures of reference specification. a I `This inventionrelates to middlings-purifiers, or machines by which thermiddlings are sepa- 1atedfrom the fine iiour and bran, the sepamarked thereon, which form a part of this rated material being delivered at suitable points; and the invention consists in the construction and` arrangement of parts, as herein,

after morefully described and claimed.

In the annexed drawings, Figure lis a vertical central section of my improved middlings- I I wire, upon which the middlings are conducted E puriiier. Fig. 2 is a plan view,partly in section; and Fig. 3 is a'detail View.

The same letters indicate the same or corre` spending parts.

y, The letter A designates an outer casing of wood, octagonal or circular in shape, and provided with a cone-shaped cover or roof, A', and with legs A2. In the center of this case A is jou'rnaled a vertical shaft, B, having at its lower y end two pulleys, c a, one of which serves to rotate the said shaft by means of abelt from any suitable motor, and the other to revolvethe fan-shaft b, as shownby dotted lines in Fig. l. The casing Ais provided at intervals with elongated ports or. openings c c, a `short distance above the bottom, for the admission of air to .the interior of thecasing, which is provided I with a bottom, B. Theshaft B has secured to it, near its upper end, anumber of radial arms,

` C @,which are set at a slight upward inclina- Over these arms is stretched a b'olting-cloth, D', -preferably ,composed of I bya spout or tube, E, which is arranged to deliver them near the centerjof said cloth. Near the lower endof the shaft B are attached the radial arms C C. A circular partition, D, of

lightmaterial, extends from theupper arms,

`(l C, to the lower arms, C C', and is for the purpose of keeping the ine iiour, which passes y through the wire-cloth D', separate from the middlings and bran,that are thrown off the re- `volving wire-cloth by centrifugal force into the space d, between the partition D and outer casing, A.

F is a circular guard composed of cloth, atl

tachedto radial arms C2, and provided on its under side with circular flanges or folds d', eX- tending down Within a quarter of an inch of the wire-cloth D. The object of this guard F is to prevent the light iiour from being carried `up with the bran, and also, by means of the circular flanges d', to, prevent the middlings frompassing too rapidly from the wireLcloth. The middlings, as they fall from the boltingcloth into the space d, are separated from the light bran by gentle upward currents or drafts of air, induced by thefan b through the suc- Y tionspout G, the draft being regulated by' K.

means of a valve or slide, m, that can be adjusted to vary the diameteryof the air-passage. The light bran passes upwardinto the suctionspont G, and through the same to the fan b,

where it` is passed through the opening or mouth e, as indicated by the arrows, and may be received in a suitable receptacle.

A short distance above the bottom B of the casting are a number of radial arms, I-I, attached to the shaft, and provided on their under sides witha series of short wooden blocks or sweeps, h h, so placedas to convey the fine our from the center outward to the annular groove or recess f, from` which it is conveyed to the opening f', and into the inclined discharge-spout g. (Indicated in dotted lines.) The purified middlings fall into the' circular groove or recess t',- at the bottom of the space d, and are swept out through the opening 7c into the spout y" by means of blocks or' sweeps h h', secured onthe under side of the radial arms H at each end. It will be observed that the sweeps hh are placed on the arms Hin an inclined direction for the purpose of sweeping the iiour from the center tod the circumference. The sweeps that y roo being merely to sweep the middlings 'along the I groove to its exit. If desired, a conical hood, I, maybe arranged beneath the cover A, above the bolting-cloth, and provided With an opening for the passage of the spout E. YThe object of this hood is to prevent any of the separated bran from falling back upon the bolting-cloth.

- vIt will be seen that by this apparatus the respectively, are separately collected through the inclined spouts at the bottom of the ma. chine.

` Having thus described my invention, what I claim as new, and desire to secure by Letters' Patent, is`

1. In a ,middlings-purier, the combination 2o of the casing A, shaft B, circular partition D, rotary bolting-cloth D', circular guard F, and fan b', substantially as described.

2. In a middlings-purifier, the combination, with the casing A, having inlets or air-ports 0.0,.conical top A', and bottom B', provided with annular concentric grooves or recesses f z', opening,respectively, into the spouts g g', ofthe shaft B, radial arms H, sweeps h 71.', radial arms C G, circular partition or shell D, the bolting- 3o cloth D, guard F, hood I, suction-'spout G, and the fan b', substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN RUSSELL.

Witnesses:

A. R. BROWN, PHILIP MAURO. 

